<template>
  <div id="app">
    <h2>测试题</h2>
    <subject
      v-for="(num, index) in arr"
      :key="index"
      :index="index"
      @result="resultFn"
    ></subject>
    <div>
      <flag
        v-for="(result, index) in arr"
        :key="index"
        :result="result"
        :index="index"
      ></flag>
    </div>
  </div>
</template>

<script>
import Subject from "./components/Subject";
import Flag from "./components/Flag";

export default {
  components: {
    Subject,
    Flag,
  },
  data() {
    return {
      arr: ["未完成", "未完成", "未完成", "未完成", "未完成"],
    };
  },
  methods: {
    resultFn(result, index) {
      this.$set(this.arr, index, result);
    },
  },
};
</script>

<style>
body {
  background-color: #eee;
}

#app {
  background-color: #fff;
  width: 500px;
  margin: 50px auto;
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.5);
  padding: 2em;
}
</style>